WO2013169805A3 - Appareil et procédés de rétroaction de réseau de neurones impulsionnels - Google Patents
Appareil et procédés de rétroaction de réseau de neurones impulsionnels Download PDFInfo
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- G06N3/049—Temporal neural networks, e.g. delay elements, oscillating neurons or pulsed inputs
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Abstract
L'invention porte sur des appareils et des procédés de rétroaction dans un réseau de neurones impulsionnels. Selon une approche, des neurones impulsionnels reçoivent un stimulus sensoriel et un signal de contexte qui correspondent au même contexte. Lorsque le stimulus fournit une excitation suffisante, des neurones génèrent une réponse. Des connexions de contexte sont ajustées selon une plasticité dépendante du positionnement temporel de potentiel d'action (STDP) inverse. Quand le signal de contexte précède le potentiel d'action post-synaptique, des connexions synaptiques de contexte sont dépréciées. Inversement, chaque fois que le signal de contexte suit le potentiel d'action post-synaptique, les connexions sont renforcées. L'ajustement de connexion STDP inverse assure une commande précise de déclenchement induit par rétroaction, élimine un emballement de boucles de rétroaction positive, et permet un fonctionnement de réseau auto-stabilisant. Selon un autre aspect de l'invention, la méthodologie d'ajustement de connexion facilite une commutation de contexte robuste lors d'un traitement d'informations visuelles. Lorsqu'un contexte (tel qu'un objet) devient absent par intermittence, un renforcement de connexion de contexte antérieur permet un déclenchement pendant une certaine période de temps. Si l'objet reste absent, la connexion est dépréciée, ce qui permet de prévenir un déclenchement ultérieur.
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US13/465,924 US9129221B2 (en) | 2012-05-07 | 2012-05-07 | Spiking neural network feedback apparatus and methods |
US13/465,924 | 2012-05-07 |
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WO2013169805A2 WO2013169805A2 (fr) | 2013-11-14 |
WO2013169805A3 true WO2013169805A3 (fr) | 2014-01-23 |
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PCT/US2013/039985 WO2013169805A2 (fr) | 2012-05-07 | 2013-05-07 | Appareil et procédés de rétroaction de réseau de neurones impulsionnels |
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US20130297541A1 (en) | 2013-11-07 |
US9129221B2 (en) | 2015-09-08 |
WO2013169805A2 (fr) | 2013-11-14 |
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